Antemão translates to "beforehand" or "in advance". It's a less common word than its synonyms like "antes" or "adiantado", making it stand out.
In the song, the lyric "Aviso de antemão" means "I'm warning you beforehand". It adds a sense of dramatic anticipation and directness to the speaker's warning, highlighting the tension in the family dinner situation.
Have you ever had a feeling that something wasn't quite right in a relationship, but you chose to ignore it? In "Jantar De Família," which means Family Dinner, GIULIA BE and Clarissa sing about this exact kind of painful heartbreak. The song tells the story of someone who feels foolish for believing their partner would change, only to be left for an ex-girlfriend... again. The singer admits, "A boba fui eu de achar que você mudaria" (I was the fool for thinking you would change).
What makes the betrayal so sharp is the powerful image of the "family dinner." The singer imagines her ex, his family, and his ex-girlfriend all sitting at the dinner table, laughing about her. She recalls how he used to say his ex "não valia nada" (wasn't worth anything) and that his mother loved her instead. This painful scene makes her wonder if she was ever truly part of the picture, asking, "Será que sempre fomos três?" (Were we always three?). It's a song about feeling replaced, lied to, and utterly alone.